| In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 |
| Revenues | 22.0 | 335.7 | 269.7 | 309.0 | 290.2 | 699.1 | 596.6 | 500.9 |
| Revenue growth | -93.4% | 24.5% | -12.7% | 6.5% | -58.5% | 17.2% | 19.1% | 22.6% |
| Cost of goods sold | 236.3 | 194.1 | 178.2 | 191.2 | 37.1 | 268.3 | 226.1 | 187.8 |
| Gross profit | -214.3 | 141.6 | 91.5 | 117.8 | 253.0 | 430.8 | 370.5 | 313.1 |
| Gross margin | -974.0% | 42.2% | 33.9% | 38.1% | 87.2% | 61.6% | 62.1% | 62.5% |
| Sales and marketing | 25.5 | 21.0 | 15.1 | 21.2 | 24.4 | 64.0 | 61.2 | 56.1 |
| Research and development | | | | | 18.5 | 133.3 | 96.7 | 87.4 |
| General and administrative | | | | | 57.9 | 93.7 | 84.9 | 86.8 |
| EBITA | 73.8 | -174.4 | -167.5 | -266.3 | 86.9 | -39.4 | -5.0 | -27.2 |
| EBITA margin | 335.5% | -52.0% | -62.1% | -86.2% | 30.0% | -5.6% | -0.8% | -5.4% |
| Amortization of intangibles | 4.7 | 7.5 | 6.3 | 6.1 | 4.5 | 24.9 | 21.6 | 17.6 |
| EBIT | 69.1 | -181.9 | -173.8 | -272.4 | 82.4 | -64.3 | -26.6 | -44.8 |
| EBIT margin | 314.1% | -54.2% | -64.4% | -88.2% | 28.4% | -9.2% | -4.5% | -9.0% |
| Pre-tax income | 105.7 | -30.6 | -48.7 | -87.9 | -55.8 | -174.0 | -123.2 | -106.4 |
| Income taxes | 13.7 | -187.2 | -0.1 | 0.6 | -3.4 | -2.0 | 1.3 | 1.2 |
| Tax rate | 12.9% | 611.0% | 0.3% | | 6.0% | 1.1% | | |
| Earnings from continuing ops | 92.1 | 156.6 | -48.6 | -88.5 | 57.1 | -172.0 | -124.5 | -107.6 |
| Earnings from discontinued ops | | -3.9 | -201.5 | -57.5 | -109.6 | | | |
| Net income | 92.1 | 152.7 | -250.0 | -146.0 | -52.5 | -172.0 | -124.5 | -107.6 |
| Net margin | 418.5% | 45.5% | -92.7% | -47.3% | -18.1% | -24.6% | -20.9% | -21.5% |
| |
| Diluted EPS | $0.75 | $1.23 | ($0.59) | ($1.10) | $0.71 | ($2.17) | ($1.58) | ($1.35) |
| Shares outstanding (diluted) | 123.3 | 127.2 | 82.3 | 80.8 | 80.0 | 79.4 | 78.9 | 79.7 |
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| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |